From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Comparison of power curves for a proposed Continental 25 HP engine with an open exhaust.
| Identifier | ExFiles\Box 56\3\ Scan041 | |
| Date | 29th February 1932 guessed | |
| RN.{Mr Robinson}64 COMPARISON OF PROPOSED CONTINENTAL 25 H.P. POWER CURVES OPEN EXHAUST (A) J.I HEAD. TWO R.R CARBS. TO LEC 2924 1.00 CHOKES 6.34 C/R TIMING ① (B) CHINA HEAD. 5.75 C/R STD CARB AS 20G IV LAST 10,000 MILES TIMING ② B.H.P. B.M.E.P. Diagram ②: EX 40.5 IN 44 .020 CLCE 6 W.W. CAMSHAFT TO E.57177 110.5° BET. CAMS Diagram ①: EX 49 IN 50 .020 CLCE 0.35 TWO EXHAUST CAMS FROM CAMSHAFT E.57177 112° BETWEEN CAMS R.P.M. M.P.H. WITH 11 X 50 AXLE | ||